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H. J. HAIGHT. ELECTED MAGNETIC TRANSMITTING AND DISTRIBUTINGTHERMOSCOPE. No. 359,210. Patented Mar. 8, 1887.

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. A A H. J. HAIGHT; ELEGTRO MAGNETIC TRANSMITTING AND DISTRIBUTINGTHERMOSCOPE.

No. 359,210. Patnte'd Mar. 8, 1887.

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H. J. HAIGHT. ELEGTRO MAGNETIC TRANSMITTING AND DISTRIBUTINGTHERMOSOOPE.

Patented Mar. 8, 1887;

H! w H BEST AVAILABLE COP 4 Sheets-Sheet 4.

(No Model.)

Patented Mar. 8

BEST AVAILABLE COP UNITED STATES PATENT OFFICE.

' HENRY JAN-SEN HAIGHT, on NEW YORK, N. Y.

ELECTRO-MAGNETIC TRANSMITTING AND DISTRIBUTING THERMOSCOPE-SPECIFICATION forming part of Letters Patent No. 359,210, dated March 8,1887.

Application filed J ulv 22, 1886.

the general form and construction the same as that for which anapplication for Letters Patent No. 200,458 has been filed by me, April18, 1886, someof the features of construction and organization which Ihave set forth in my application N0.'206,154, Med J uue 24, 1886, foranelectromagneticreceiving,transmitting, and distributing thermoscope.Such applied features in their new relation to atransmitting thermoscopeand other devices added thereto I now describe in this specification.

In the accompanying drawings, Figure l is a central vertical axialsection of the vertical cylindrical part of the transmitting-thermoscopeand a vertical transverse section of the horizontal cylindrical'partthereof, the thermostatic coil and the other parts within the doublecylindrical case being shown in side or end elevation; Fig. 2, avertical transverse section of the upper cylindrical part and a verticalaxial section of the upper portion of the lower cylindrical part of theinstrument, some of the interior parts being shown in side view, some ofthe parts being left out; Fig. 3, a vertical axial section of the uppercylindrical part and of the upper portion of the lower cylindrical part,parts of the interior work being shown in elevation; Fig. 4, atransverse vertical section ofthe upper cylindrical part of theinstrument in a plane indicated by the line 4 4, Fig. 3; Fig. 5, asection in part corresponding to the section in Fig. 3, showing amodification of the construction of the conmeeting-gear between theshaft of the thermostatic coil and the index-shaft; Fig. 6, a sectioncorresponding to the section in Fig. 4, showing the same modification asin Fig. 5; Fig. 7 a view in detail of a secondary circuit closingdevice.

Serial No. 20am. N0 model).

Like letters designate corresponding parts in ail of the figures.

In the drawings, A represents the lower vertical cylindrical part, and Bthe upper horizontal cylindrical part of the case; 0, the thermostaticcoil in the lower cylindrical part; D, the index in the uppercylindrical part; E, the vertical thermostatic shaft or spindle, and Fthe horizontal index-shaft, as in my said application for atransmitting-thermoscope.

In the present organization I do not have a divided index-shaft, as inthe said application, but connect the two shafts by a suitable positivegearing, by which the desired relative speed of the two shafts may beobtained.

In Figs. 3 and 4 I Show a worm-gear, a, on the thermostatic-coil shaftE, gearingdirectly into a worm-wheel, I), on the index-shaft.

In the modified construction shown in Figs. 5 and 6 I show the worm-geara, gearing into an intermediate worm-wheel, b, which in turn gears intoa pinion, c, on tlieindex-shaft. One or more thermostatic coils andworm-screws may be used.

In combining the organizations of the two inventions set forth in thetwo applications above referred to, I employ two electro-magnets, GH,Figs. 1 and 2, located in the upper cylindrical part of the instrumentand mounted on the plate 01 back of the dial of the index D, the formermagnet, G, being in the increasing-temperature circuit and the lattermagnet, II, being in the decreasing-tempera ture circuit in the mainline reaching to an observatory or station. These electro-magnets,through their armatures e f and their armature-levers I J, actuate,respectively, pawls g h and detents M, which take into ratchet-wheels KL on shafts Z, all precisely in the same way and by similar adjustmentsas set forth in my aforesaid application No. 206,154. From this point ofaction the or-- ganization is different from that of the saidapplication. Thus, the pinions m a on the shafts k l in the presentinvention gear into an interior set of gear-teeth, 0, of an annular orring circuit-closer, M, which is held in position by the said pinions,being at opposite sides thereof, and by two grooved frictionbearingagainst the outer edges of the ring in positions a quarter of a circledistant from the said pinion, or thereabout. The organization of thisannular circuit-closer and its operation in connection with associatedparts are as follows: The ring is made with two metallic parts, r s,separated by an insulating-strip, t, inserted between them, as shown.The outer .part, 7*, of the ring has metallic connection with one orboth of the fixed pivots q g by one or both of the friction-pulleys p pand by one or two elastic metallic strips, u, attached to the saidpivots and bearing against the periphery of the ring, and one or both ofthe said pivots are put in .circuit by the wire 2 of theincreasing-temperature electro-magnet G. The inner part, 8, of the ringM has also metallic connection with the wire 3 of thedecreasingtemperature electro-magnet H. through one or both of thepinions m n, shafts kl, and a metallic supporting bridge or bracket, 12,which is mounted on but insulated from the back plate, d, of theinstrument, and in which the said shafts have their bearings, one end ofthe magnet-wire 3 being attached to the said bridge. j

The arrangement of the parts thus far described is such that at eachbreaking and 010s ing of the increasing-temperature circuit the annularcircuit-closer M will be moved the distance of one degree of the\temperature' scale in the proper direction by the action of theelectro-magnet G inthat circuit,'and at each breaking and closing of thedecreasingtemperature circuit the said annular circuitcloser willsimilarly be moved one degree of the temperature-scale in the oppositedirection.

Thus far, however, no provision for closing and breaking the circuitshas been described. Here a construction partly belonging to my electromagnetic transmitting thermoscope described in my application No.200,458, above referred to, is employed. Thus the thermostatic coil 0,its shaft E, and the indexshaft F, geared to the said shaft E, are used,whereby each change of one degree of temperature of the air in which theinstrument is situated turns the said index-shaft F one degree of thetemperature-scale in one or the other direction, according to whetherthe temperature is increasing or decreasing, these movements of theshaft corresponding and harmonizing with those of the annularcircuitcloser M, above specified. Then upon the rear end of theindex-shaft F is secured an arm, N, having an elastic tip or extension,w, which is arranged to touch either one of two pins or projections, y,one projecting from the outer part, 1*, of the ring circuit-closer andthe other projecting from the inner part, 8, of the said ring, as shownin Figs. 1 and 2. The tip of the arm, as shown, extends between the saidpins, and it is so arranged between them that it can have one degree ofmovement and a slight additional movement, as little as practicable, inmoving from one to the other. The

BEST AVAILABLE co index-shaft F, on which this arm is mounted, is inmetallic connection with the battery-wire or return-wire of bothcircuits, so that when the tip of the arm touches the pin at it closesthe increasingteniperature circuit and when the tip touches the pin 3 itcloses the decreasing-temperature circuit.

The movement resulting from the combined mechanisms above described isas follows: Sup pose the temperature of the atmosphere where theinstrument is located is increasing and that the pin 1- on thecircuit-closer is one degree in advance of or away from thecircuitclosing arm N, as soon as another degree of increasingtemperature is reached, and consequently the arm has moved forward onedegree, it touches the pin 1' and closes the increasing-temperaturecircuit. The armaturelever of the magnet G is thereby moved and theannular circuit-closer M is moved onedegree, thus moving its pin 9" onedegree away from the arm N again, and consequently again breaking thecircuit. The next increasing degree of temperature again'brings the arminto contact with the said pin 1' and again closes the circuit, with arepetition of the resultant action. Thus the movements are repeated as'long as the temperature increases.

The movement is precisely the same in the opposite direction whenthetemperature is decreasing, the arm N then coming successively intocontact with the pin 3 on the annular circuit-closer and being separatedtherefrom by the retreating movement of the said circuit-closer.

In Figs. 2, 3, 4, and 7 I show an additional device whereby a localbattery is used for actuating the electro-magnets G H and by them thecircuit-closer M, so that the main line battery-wire may be relieved ofthis work, and thus be better adapted to transmit thermometricindications to long distances.

All the parts above described are here retained, and in addition thefollowing device is employed: Two vibratory, generally obtuseangled,levers, O P, are mounted, as shown, upon a tubular pivot, a, Fig. 3,around the index-shaft F, and they are connected to the armature-leversI J of the electro-magnets in precisely the same way as the ring orcircular multiple circuit-closers set forth in my aforesaid applicationNo. 206,154, namely, by means of arms I) c, projecting laterally fromrespective levers near their upper ends, and wires orrods d 6,connecting the said arms respectively with the armature-levers, asrepresented in Fig. 2. Here the wires 2 and 3 of the respectiveelectro-magnets and returnwire 4 for the two are connected with thelocalbattery Q, so that when the circuits are closed by the circuit-closingarm N this battery operates the annular circuit-eloser M and also saidarms 0 P, which are circuit closers and breakers for themain-linecircuits in the following manner: The increasing-temperature wire 5 ofthe main line is parted at the instrument, and its two ends at theparting are respectively IKO ITO

connected with two post or stud plates, f 9, attached to but insulatedfrom the plate (1 of the instrument, and therefore from each other.Similar post or stud plates, h i, for parting the decreasing-temperatureline-wire 6 are attached in a similar way to the plate (I, the two setsof post or stud plates being suitably placed in different positions, asshown, to suit the positions of the lower ends of the levers O P. On therespective plates f h are secured projecting posts BB, upon the outerend of which, respectively, are pivoted at j bell-crank levers S S, asshown in Fig. 7, and on the other plates, i, respectively, are securedstuds T T. The relative positions of the post R and the stud T of eachset are shown in the said Fig. 7, and the associated lever S is arrangedto have one arm, I, bearupon the outer end of the stud, as shown, beingpressed thereon by a light spring, or its equivalent. Thus the circuitthrough the wire is completed and held closed 'by this device. Platinumor silver contact-points m m areplaced on thestud and lever, as shown inthe same figure. Now the lower arms of the respective levers O P havetheir lower ends, a n, (insulated so as not to interfere with the maincirctiits,) brought into such relation to the bell-crank levers S S asto bear against .the other arm, 0, of each, and that when the levers aremoved by the respective magnet-levers I J they will lift the respectivearms Z Z" of the bell-crank levers from the stud T T and break themain-line circuits, .one or the other, as the case may be. The breakingof the local circuit, which immediate] ydollows this action of eitherlever O or I, causes the lever to be retracted, and thus the maincircuit is immediately closed, again producing the requisitetransmission of the temperatureindications to the distant observatory orstation. The two circuit-wires 5 and (i are connected with the singlereturn or battery wire 7 of the main circuits.

It is obvious that it makes no difference whether the levers O P arecaused to lift the levers S S by the direct positive action of thearmature-levers I J of the electro-magnets or by the counter-springs z zof the armaturelevers. In the arrangement shown in the drawings thelatter way is shown, the springs z z moving the levers O P positively,and these springs are strong enough to overcome the lever-sp rings 7;7.:'.

For local distribution this device may bein separatetransmitting-circuits, the battery Q being a separate-line battery, andsince these levers O I may be multiplied or have differentbran ches. aswith the circuit-closing wheels set forth in the said application No.206,154, the present instrument is assimilated to that instrument inthis particular, and thus may fulfill, as a transmitting-instrument, thesame additional functions as the receiving-instrument therein set forth.

BEST AVAiLABLE COP 3 I claim as my invention- 1. In an electromagnetictransmitting-thermoscope, the combination of a thermostatic coil, 0,index-shaft F, means for connecting the said coil and shaft,circuit-closing arm N on the index-shaft, circuit-closing ring M,electromagnets G H, armature-levers I J, and means for connecting thesaid armature-levers and circuit-closing ring, substantially as and forthe purpose herein specified.

2. The combination of the thermostatic coil 0, coil-shaft E, index-shaftF, geared to the coil-shaft, circuit-closing arm N on the indexshaft andprovided with an elastic tip, w, ring circuit-closer M, constructed withtwo parts, 1' s, insulated from each other and respectively providedwith contactpins a; 11 electro-magnets G H, respectively in theincreasing and i ecreasing temperature circuits, armature-levers I J,pawls g h 'i j, ratchetwheels K L on shafts 7; Z, and gear-wheels m n onthe said shafts and gearing into the circuitclosing ring,substantiallyas and for the purpose herein specified.

3. The combination of a thermostatic coil, C, coil-shaft E, index-shaftF, worm a and worm-wheel I), connecting the said shafts, circuit-closingarmNon the index-shaft, circuitclosing ring M, made in two parts, 1' s,insulated from each other and respectively provided with contact-pins a;1, electromagnets G H, armature-levers I J, and means for connecting thesaid armature-levers and circuitclosing ring, substantially as and forthe purpose herein specified.

at. The combination of the separate battery Q, electro-magnets G H inscparateelectric circuits connected with the battery, armaturelevers IJ, vibrating levers O P, respectively. connected with thearmature-levers, levers R R, adapted to open and close other separateline-circuits, and countersprings z z and k k, substantially as and forthe purpose herein specified.

5. The combination of the coil 0, indexshaft F, means for connecting thesaid coil and shaft, circuit-closing arm N on the index-shaft,circuit-closing ring M, electromagnets G H, armature-levers I J, meansfor connecting the said armature-levers and circuit-closing ring,separate battery Q in the circuits of the said electro-magnets,vibratory levers O P, connected, respectively, with the saidarmaturelevers, levers R R, closing other electric circuits, andcounter-springs z z and 7c 70, sub stantially as and for the purposeherein specified.

HENRY J ANSEN HAIGHT.

Vitnesses':

O. F. Fannswon'rrr, WM. J. GARDNER.

